SCD5905 Rev A

RadHard-by-Design

Standard Products

Preview

September 22, 2012

www.aeroflex.com/RHDseries

RHD5905 Quad Operational Amplifier

Instrumentation Differential Amplifier

with Enable

FEATURES

- Total dose:

>1Mrad(Si); Dose rate = 50 - 300 rads(Si)/s

- ELDRS Immune

- SEL Immune

- Neutron Displacement Damage

- 20-pin, 0.30"W x 0.50" L x 0.12"Ht SOIC

- Typical Weight 1.6 grams

GENERAL DESCRIPTION

Aeroflex’s RHD5905 is a radiation hardened, single supply, differential, instrumentation, quad operational

amplifier with enable in a 20-pin SOIC package. The RHD5905 design uses specific circuit topology and

layout methods to mitigate total ionizing dose effects and single event latchup. These characteristics make

the RHD5905 especially suited for the harsh environment encountered in Deep Space missions. It is

guaranteed operational from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534

Class K, the RHD5905 is ideal for demanding military and space applications.

ORGANIZATION AND APPLICATION

The RHD5905 amplifiers are capable of rail-to-rail input and outputs. Performance characteristics listed

are for general purpose operational 5V CMOS amplifier applications. The amplifiers will drive substantial

resistive or capacitive loads and are unity gain stable under normal conditions. Resistive loads in the low

kohm range can be handled without gain derating and capacitive loads of several nF can be tolerated.

CMOS device drive has a negative temperature coefficient and the devices are therefore inherently tolerant

to momentary shorts, although on chip thermal shutdown is not provided. All inputs and outputs are diode

protected.

effects are application dependant.

The RHD5905 is configured with enable/disable control. Pairs of amplifiers are put in a power-down

condition with their outputs in a high impedance state. Several useful operational amplifier configurations

are supported where more than one amplifier can feed an output with others disabled.